Crematory



( 3 Sheets-Sheet 1.

D. F. DONEGAN. UREMATORY.

No. 496,046. Patented Apr. 25, 1893'.

fil-

witnesses. gumm (No ModeL') 3 Sheets-Sheet 3.

D. P. DONEGAN. OREMATORY.

No. 496,046. Patented Ap r.'25, 1893.

UNITED STATES PATENT OFFICE.

DANIEL F. DONEGAN, OF LOS ANGELES, CALIFORNIA.

CREMATO RY.

SPECIFICATION forming part of Letters Patent No. 496,046, dated April25, 1893.

Application filed August 6, 1892- Serial No. 442,303. (No model.)

To all whom it may concern.-

Be it known that I, DANIEL F. DONEGAN, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented a new and useful Improved Crematory, of whichthe following is a specification.

My invention relates to that class of crematories in which the matter tobe incinerated is subjected to the action of ignited inflammablesinjected into the incinerating chamber through injector burners and inwhich the gases arising from such matter is utilized in the productionof the heat to carry on the combustion.

My invention relates especially to the peculiar construction andarrangement of the incinerating chamber, the injector burners and theescape and draft flues, whereby the incineration is accomplished withgreater economy, facility and effectiveness than heretofore.

Myinvention consists essentially in acrematory comprising thecombination of an incinerat-ing chamber provided with injectorburnersand adapted and arranged to normally have no draft passages or devicesleadinginto or from such incinerating chamber except such injectorburners for ingress and one or more restricted escape draft flues foregress; one or more of such injector burners arranged to inject ignitedinflammables transversely the incinerating chamber near one end thereof,and one or more escape draft flues arranged near the other end of theincinerating chamber and having the receiving mouth or months thereofelevated above the level of the injector burners, and arranged to opendownward from such chamber to allow restricted escape of the products ofcombustion.

It also embraces other features of construction hereinafter moreparticularly specified.

The accompanying drawings illustrate my improved crematory.

Figure 1 is a perspective view of the crematory which may be providedwith an additional smoke stack if desired to increase the draft. I havesecured excellent results with a crematory of this construction having asmoke stack sixty feet high, but such stack is not essential to theproper and satisfactory operation of the apparatus. Fig. 2 is a verticalcross-section of the crematory on line aa Figs. 3 and 5. Fig. 3 is avertical longitudinal mid-section on line indicated by m-a: Fig. 5. Fig.4 is a vertical fragmental sectional view on line indicated by b-b Fig.6. Figs. 5 and 6 are horizontal sections respec-tively on lines y-y and2-2 Fig. 3.

A indicates the incinerating chamber of firebrick and B its floor oftile.

0 indicates a supplementary tile floor and D the base floor.

E E indicate restricted escape flues which are arranged to allowrestricted escape of the products of combustion. These fines consist inpart of the vertical passages e e having their receiving mouths abovethe level of the injector burners F F, &c., which burners are arrangedat slight distance above the floor B of the incinerating chamber so thatthe injected inflammables will strike upon the charge of matter to becremated when the same is deposited upon the floor. The flues E furthercomprise a horizontal Y passage the arms or branches f f of whichrespectively communicate with the descending fines e, e; and the stem 9of which Y passage opens into the ascending fine H at the end of thecrematory. An injector burnerIis arranged to inject ablast ofinflammables into the stem or throat g of the fine the discharge beingtoward the ascending flue H so that the blast from the injector I willassist in forcing the products of combustion toward the flueH and alsoadd to the heat upon the floor B and assist in consuming escaping gases.

J indicates an injector burner arranged to inject a blast ofinfiammables transverse the ascending flue across the current ofescaping products of combustion thus to complete the combustion of allthe gases. This burner is only put into use in burning very refractoryand offensive matter.

K K indicate openings through which the matter to be incinerated isdeposited. k k are the covers therefor.

L L are doors giving access to the incinerating chamber.

Z Z are doors giving access to the horizontal flue g and Z Z" are doorsgiving accessto the lower chamber M which is arranged beneath thehorizontal escape flue g to aiford a receptacle for fluids which mightdrip'from a charge of matter deposited in the incinerating chamber whenthe burners are not lighted.

It is to be understood that the tiles which form the floors B and O arenot designed to be laid so closely as to form water tight floors, andescape is thereby provided for liquids to flow into the lower chamber Mfrom the incinerating chamber. The heat of the flame and products ofcombustion. passing through the horizontal portions ff and g of the flueis sufficient to evaporate and consume the liquids and combustiblematter which may find its way into the lower chamber.

The tile floor B is thin and in practice the flame and heat from theiucinerating chamber, passing through the horizontal flue ff and g,operate in connection with the heat in the incinerating chamber, to heatthe floor to a white heat. The charge is thus heated on all sides andthe flame from the burners and from the burning charge is fully utilizedto incinerate the charge.

A passageN is arranged for direct com munication between theincinerating chamber and the flue H.

0 indicates a damperarranged to normally I close the passage. When thefirc is to be started, however, the passage is opened as indicated inFig. 2. WVhen the burners are well in operation the damper is closed.

N indicates a contracted passage com municatin g between the horizontalflue g and the ascending flue H, and 0' indicates a damper arranged toclose the same when desired to force all the escape through passage N orto prevent escape through the flue g.

In practice it is possible to create so hot a fire with the injectorthat at times one burner will furnish sufficient heat to conduct theoperation; but the best results are obtained when a series of opposedinjectors are in operation. That is to say:In ordinary practice I findthat when the crelnatory is well started into operation, the two burnersF F which are at the end of the incinerating chamber farthest from theescapes e, c, will be sufficient to keep the crematory in satisfactoryoperation to incinerate the character of mat- 5o ter ordinarilyconstituting the garbage of cities. If these are found insuflicient toprevent the escape of odors, theinjector I is employed. If theincineration is not so rapid as desired more of the burners are broughtinto action. Pairs of opposed burners should be operated at the sametime for the reason that the flames will more efiectually interminglcand cause more complete combustion within the chamber A. The action ofthe heat-liberates the gases from the deposits of matter and owing tothe large space above and around the charge (into which such gasesascend from the charge), and the restricted escape flues e e, the gasesare largely consumed before they find exit through such flues e e.

The injector burners which I have most successfully used have operatedto inject carbureted air into the crematory, but I do not limit myselfto any particular style of injector burner.

Now, having described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The combination of theincinerating chamber; the two descending fiueslocated at one end thereof on opposite sides thereof and provided withthe elevated receiving months; the Y shaped passage f f and gcommunicating with such descending flues by the branch passages f f; theascending flue opening from the passage g; the injector burner arrangedto discharge into the incinerating chamber near the end opposite thedescending fines e and the injector burner I arranged to discharge intothe passage 9 between the branch passages ff and toward the ascendingflue.

D. F. DONEGAN. Witnesses:

JAMES R. TOWNSEND, ALFRED I. TOWNSEND.

